Merge pull request #1471 from qmk/lufa_lib

Update LUFA and move it to /lib/lufa

5 files changed, 707 insertions, 0 deletions

diff --git a/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Board.h b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Board.h
new file mode 100644
index 000000000..920681d03
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Board.h
@@ -0,0 +1,90 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Board specific information header for the Atmel USBKEY.
+ *  \copydetails Group_BoardInfo_USBKEY
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the Board driver
+ *        dispatch header located in LUFA/Drivers/Board/Board.h.
+ */
+
+/** \ingroup Group_BoardInfo
+ *  \defgroup Group_BoardInfo_USBKEY USBKEY
+ *  \brief Board specific information header for the Atmel USBKEY.
+ *
+ *  Board specific information header for the Atmel USBKEY.
+ *
+ *  @{
+ */
+
+#ifndef __BOARD_USBKEY_H__
+#define __BOARD_USBKEY_H__
+
+	/* Includes: */
+		#include "../../../../Common/Common.h"
+		#include "../../Buttons.h"
+		#include "../../Dataflash.h"
+		#include "../../Joystick.h"
+		#include "../../LEDs.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_BOARD_H)
+			#error Do not include this file directly. Include LUFA/Drivers/Board/Board.h instead.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Indicates the board has hardware Buttons mounted. */
+			#define BOARD_HAS_BUTTONS
+
+			/** Indicates the board has a hardware Dataflash mounted. */
+			#define BOARD_HAS_DATAFLASH
+
+			/** Indicates the board has a hardware Joystick mounted. */
+			#define BOARD_HAS_JOYSTICK
+
+			/** Indicates the board has hardware LEDs mounted. */
+			#define BOARD_HAS_LEDS
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Buttons.h b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Buttons.h
new file mode 100644
index 000000000..068fd0b72
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Buttons.h
@@ -0,0 +1,103 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Board specific Buttons driver header for the Atmel USBKEY.
+ *  \copydetails Group_Buttons_USBKEY
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the Buttons driver
+ *        dispatch header located in LUFA/Drivers/Board/Buttons.h.
+ */
+
+/** \ingroup Group_Buttons
+ *  \defgroup Group_Buttons_USBKEY USBKEY
+ *  \brief Board specific Buttons driver header for the Atmel USBKEY.
+ *
+ *  Board specific Buttons driver header for the Atmel USBKEY.
+ *
+ *  <table>
+ *    <tr><th>Name</th><th>Info</th><th>Active Level</th><th>Port Pin</th></tr>
+ *    <tr><td>BUTTONS_BUTTON1</td><td>HWB Button</td><td>Low</td><td>PORTE.2</td></tr>
+ *  </table>
+ *
+ *  @{
+ */
+
+#ifndef __BUTTONS_USBKEY_H__
+#define __BUTTONS_USBKEY_H__
+
+	/* Includes: */
+		#include "../../../../Common/Common.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_BUTTONS_H)
+			#error Do not include this file directly. Include LUFA/Drivers/Board/Buttons.h instead.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Button mask for the first button on the board. */
+			#define BUTTONS_BUTTON1      (1 << 2)
+
+		/* Inline Functions: */
+		#if !defined(__DOXYGEN__)
+			static inline void Buttons_Init(void)
+			{
+				DDRE  &= ~BUTTONS_BUTTON1;
+				PORTE |=  BUTTONS_BUTTON1;
+			}
+
+			static inline void Buttons_Disable(void)
+			{
+				DDRE  &= ~BUTTONS_BUTTON1;
+				PORTE &= ~BUTTONS_BUTTON1;
+			}
+
+			static inline uint8_t Buttons_GetStatus(void) ATTR_WARN_UNUSED_RESULT;
+			static inline uint8_t Buttons_GetStatus(void)
+			{
+				return ((PINE & BUTTONS_BUTTON1) ^ BUTTONS_BUTTON1);
+			}
+		#endif
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h
new file mode 100644
index 000000000..77be22011
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h
@@ -0,0 +1,237 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Board specific Dataflash driver header for the Atmel USBKEY.
+ *  \copydetails Group_Dataflash_USBKEY
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the dataflash driver
+ *        dispatch header located in LUFA/Drivers/Board/Dataflash.h.
+ */
+
+/** \ingroup Group_Dataflash
+ *  \defgroup Group_Dataflash_USBKEY USBKEY
+ *  \brief Board specific Dataflash driver header for the Atmel USBKEY.
+ *
+ *  Board specific Dataflash driver header for the Atmel USBKEY board.
+ *
+ *  <table>
+ *    <tr><th>Name</th><th>Info</th><th>Select Pin</th><th>SPI Port</th></tr>
+ *    <tr><td>DATAFLASH_CHIP1</td><td>AT45DB642D (8MB)</td><td>PORTE.0</td><td>SPI0</td></tr>
+ *    <tr><td>DATAFLASH_CHIP2</td><td>AT45DB642D (8MB)</td><td>PORTE.1</td><td>SPI0</td></tr>
+ *  </table>
+ *
+ *  @{
+ */
+
+#ifndef __DATAFLASH_USBKEY_H__
+#define __DATAFLASH_USBKEY_H__
+
+	/* Includes: */
+		#include "../../../../Common/Common.h"
+		#include "../../../Misc/AT45DB642D.h"
+		#include "../../../Peripheral/SPI.h"
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_DATAFLASH_H)
+			#error Do not include this file directly. Include LUFA/Drivers/Board/Dataflash.h instead.
+		#endif
+
+	/* Private Interface - For use in library only: */
+	#if !defined(__DOXYGEN__)
+		/* Macros: */
+			#define DATAFLASH_CHIPCS_MASK                (DATAFLASH_CHIP1 | DATAFLASH_CHIP2)
+			#define DATAFLASH_CHIPCS_DDR                 DDRE
+			#define DATAFLASH_CHIPCS_PORT                PORTE
+	#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Constant indicating the total number of dataflash ICs mounted on the selected board. */
+			#define DATAFLASH_TOTALCHIPS                 2
+
+			/** Mask for no dataflash chip selected. */
+			#define DATAFLASH_NO_CHIP                    0
+
+			/** Mask for the first dataflash chip selected. */
+			#define DATAFLASH_CHIP1                      (1 << 0)
+
+			/** Mask for the second dataflash chip selected. */
+			#define DATAFLASH_CHIP2                      (1 << 1)
+
+			/** Internal main memory page size for the board's dataflash ICs. */
+			#define DATAFLASH_PAGE_SIZE                  1024
+
+			/** Total number of pages inside each of the board's dataflash ICs. */
+			#define DATAFLASH_PAGES                      8192
+
+		/* Inline Functions: */
+			/** Initializes the dataflash driver so that commands and data may be sent to an attached dataflash IC.
+			 *  The appropriate SPI interface will be automatically configured.
+			 */
+			static inline void Dataflash_Init(void)
+			{
+				DATAFLASH_CHIPCS_DDR  |= DATAFLASH_CHIPCS_MASK;
+				DATAFLASH_CHIPCS_PORT |= DATAFLASH_CHIPCS_MASK;
+
+				SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
+			}
+
+			/** Sends a byte to the currently selected dataflash IC, and returns a byte from the dataflash.
+			 *
+			 *  \param[in] Byte  Byte of data to send to the dataflash
+			 *
+			 *  \return Last response byte from the dataflash
+			 */
+			static inline uint8_t Dataflash_TransferByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
+			static inline uint8_t Dataflash_TransferByte(const uint8_t Byte)
+			{
+				return SPI_TransferByte(Byte);
+			}
+
+			/** Sends a byte to the currently selected dataflash IC, and ignores the next byte from the dataflash.
+			 *
+			 *  \param[in] Byte  Byte of data to send to the dataflash
+			 */
+			static inline void Dataflash_SendByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
+			static inline void Dataflash_SendByte(const uint8_t Byte)
+			{
+				SPI_SendByte(Byte);
+			}
+
+			/** Sends a dummy byte to the currently selected dataflash IC, and returns the next byte from the dataflash.
+			 *
+			 *  \return Last response byte from the dataflash
+			 */
+			static inline uint8_t Dataflash_ReceiveByte(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
+			static inline uint8_t Dataflash_ReceiveByte(void)
+			{
+				return SPI_ReceiveByte();
+			}
+
+			/** Determines the currently selected dataflash chip.
+			 *
+			 *  \return Mask of the currently selected Dataflash chip, either \ref DATAFLASH_NO_CHIP if no chip is selected
+			 *          or a DATAFLASH_CHIPn mask (where n is the chip number).
+			 */
+			static inline uint8_t Dataflash_GetSelectedChip(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
+			static inline uint8_t Dataflash_GetSelectedChip(void)
+			{
+				return (~DATAFLASH_CHIPCS_PORT & DATAFLASH_CHIPCS_MASK);
+			}
+
+			/** Selects the given dataflash chip.
+			 *
+			 *  \param[in]  ChipMask  Mask of the Dataflash IC to select, in the form of a \c DATAFLASH_CHIPn mask (where n is
+			 *              the chip number).
+			 */
+			static inline void Dataflash_SelectChip(const uint8_t ChipMask) ATTR_ALWAYS_INLINE;
+			static inline void Dataflash_SelectChip(const uint8_t ChipMask)
+			{
+				DATAFLASH_CHIPCS_PORT = ((DATAFLASH_CHIPCS_PORT | DATAFLASH_CHIPCS_MASK) & ~ChipMask);
+			}
+
+			/** Deselects the current dataflash chip, so that no dataflash is selected. */
+			static inline void Dataflash_DeselectChip(void) ATTR_ALWAYS_INLINE;
+			static inline void Dataflash_DeselectChip(void)
+			{
+				Dataflash_SelectChip(DATAFLASH_NO_CHIP);
+			}
+
+			/** Selects a dataflash IC from the given page number, which should range from 0 to
+			 *  ((DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS) - 1). For boards containing only one
+			 *  dataflash IC, this will select DATAFLASH_CHIP1. If the given page number is outside
+			 *  the total number of pages contained in the boards dataflash ICs, all dataflash ICs
+			 *  are deselected.
+			 *
+			 *  \param[in] PageAddress  Address of the page to manipulate, ranging from
+			 *                          0 to ((DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS) - 1).
+			 */
+			static inline void Dataflash_SelectChipFromPage(const uint16_t PageAddress)
+			{
+				Dataflash_DeselectChip();
+
+				if (PageAddress >= (DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS))
+				  return;
+
+				#if (DATAFLASH_TOTALCHIPS == 2)
+					if (PageAddress & 0x01)
+					  Dataflash_SelectChip(DATAFLASH_CHIP2);
+					else
+					  Dataflash_SelectChip(DATAFLASH_CHIP1);
+				#else
+					Dataflash_SelectChip(DATAFLASH_CHIP1);
+				#endif
+			}
+
+			/** Toggles the select line of the currently selected dataflash IC, so that it is ready to receive
+			 *  a new command.
+			 */
+			static inline void Dataflash_ToggleSelectedChipCS(void)
+			{
+				uint8_t SelectedChipMask = Dataflash_GetSelectedChip();
+
+				Dataflash_DeselectChip();
+				Dataflash_SelectChip(SelectedChipMask);
+			}
+
+			/** Spin-loops while the currently selected dataflash is busy executing a command, such as a main
+			 *  memory page program or main memory to buffer transfer.
+			 */
+			static inline void Dataflash_WaitWhileBusy(void)
+			{
+				Dataflash_ToggleSelectedChipCS();
+				Dataflash_SendByte(DF_CMD_GETSTATUS);
+				while (!(Dataflash_ReceiveByte() & DF_STATUS_READY));
+				Dataflash_ToggleSelectedChipCS();
+			}
+
+			/** Sends a set of page and buffer address bytes to the currently selected dataflash IC, for use with
+			 *  dataflash commands which require a complete 24-bit address.
+			 *
+			 *  \param[in] PageAddress  Page address within the selected dataflash IC
+			 *  \param[in] BufferByte   Address within the dataflash's buffer
+			 */
+			static inline void Dataflash_SendAddressBytes(uint16_t PageAddress,
+			                                              const uint16_t BufferByte)
+			{
+				#if (DATAFLASH_TOTALCHIPS == 2)
+					PageAddress >>= 1;
+				#endif
+
+				Dataflash_SendByte(PageAddress >> 5);
+				Dataflash_SendByte((PageAddress << 3) | (BufferByte >> 8));
+				Dataflash_SendByte(BufferByte);
+			}
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Joystick.h b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Joystick.h
new file mode 100644
index 000000000..741036444
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Joystick.h
@@ -0,0 +1,130 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Board specific joystick driver header for the Atmel USBKEY.
+ *  \copydetails Group_Joystick_USBKEY
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the joystick driver
+ *        dispatch header located in LUFA/Drivers/Board/Joystick.h.
+ */
+
+/** \ingroup Group_Joystick
+ *  \defgroup Group_Joystick_USBKEY USBKEY
+ *  \brief Board specific joystick driver header for the Atmel USBKEY.
+ *
+ *  Board specific joystick driver header for the Atmel USBKEY.
+ *
+ *  <table>
+ *    <tr><th>Left Port Pin</th><th>Up Port Pin</th><th>Right Port Pin</th><th>Down Port Pin</th><th>Press Port Pin</th></tr>
+ *    <tr><td>PORTB.6</td><td>PORTB.7</td><td>PORTE.4</td><td>PORTE.5</td><td>PORTB.5</td></tr>
+ *  </table>
+ *
+ *  @{
+ */
+
+#ifndef __JOYSTICK_USBKEY_H__
+#define __JOYSTICK_USBKEY_H__
+
+	/* Includes: */
+		#include "../../../../Common/Common.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_JOYSTICK_H)
+			#error Do not include this file directly. Include LUFA/Drivers/Board/Joystick.h instead.
+		#endif
+
+	/* Private Interface - For use in library only: */
+	#if !defined(__DOXYGEN__)
+		/* Macros: */
+			#define JOY_BMASK                 ((1 << 5) | (1 << 6) | (1 << 7))
+			#define JOY_EMASK                 ((1 << 4) | (1 << 5))
+
+			#define JOY_PORTE_MASK_SHIFT      1
+	#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Mask for the joystick being pushed in the left direction. */
+			#define JOY_LEFT                  (1 << 6)
+
+			/** Mask for the joystick being pushed in the right direction. */
+			#define JOY_RIGHT                ((1 << 4) >> JOY_PORTE_MASK_SHIFT)
+
+			/** Mask for the joystick being pushed in the upward direction. */
+			#define JOY_UP                    (1 << 7)
+
+			/** Mask for the joystick being pushed in the downward direction. */
+			#define JOY_DOWN                 ((1 << 5) >> JOY_PORTE_MASK_SHIFT)
+
+			/** Mask for the joystick being pushed inward. */
+			#define JOY_PRESS                 (1 << 5)
+
+		/* Inline Functions: */
+		#if !defined(__DOXYGEN__)
+			static inline void Joystick_Init(void)
+			{
+				DDRB  &= ~JOY_BMASK;
+				DDRE  &= ~JOY_EMASK;
+
+				PORTB |=  JOY_BMASK;
+				PORTE |=  JOY_EMASK;
+			}
+
+			static inline void Joystick_Disable(void)
+			{
+				DDRB  &= ~JOY_BMASK;
+				DDRE  &= ~JOY_EMASK;
+
+				PORTB &= ~JOY_BMASK;
+				PORTE &= ~JOY_EMASK;
+			}
+
+			static inline uint8_t Joystick_GetStatus(void) ATTR_WARN_UNUSED_RESULT;
+			static inline uint8_t Joystick_GetStatus(void)
+			{
+				return (((uint8_t)~PINB & JOY_BMASK) | (((uint8_t)~PINE & JOY_EMASK) >> JOY_PORTE_MASK_SHIFT));
+			}
+		#endif
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/LEDs.h b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/LEDs.h
new file mode 100644
index 000000000..18ff756c8
--- /dev/null
+++ b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/LEDs.h
@@ -0,0 +1,147 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Board specific LED driver header for the Atmel USBKEY.
+ *  \copydetails Group_LEDs_USBKEY
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the LEDs driver
+ *        dispatch header located in LUFA/Drivers/Board/LEDs.h.
+ */
+
+/** \ingroup Group_LEDs
+ *  \defgroup Group_LEDs_USBKEY USBKEY
+ *  \brief Board specific LED driver header for the Atmel USBKEY.
+ *
+ *  Board specific LED driver header for the Atmel USBKEY.
+ *
+ *  <table>
+ *    <tr><th>Name</th><th>Color</th><th>Info</th><th>Active Level</th><th>Port Pin</th></tr>
+ *    <tr><td>LEDS_LED1</td><td>Red</td><td>Bicolor Indicator 1</td><td>High</td><td>PORTD.4</td></tr>
+ *    <tr><td>LEDS_LED2</td><td>Green</td><td>Bicolor Indicator 1</td><td>High</td><td>PORTD.5</td></tr>
+ *    <tr><td>LEDS_LED3</td><td>Red</td><td>Bicolor Indicator 2</td><td>High</td><td>PORTD.6</td></tr>
+ *    <tr><td>LEDS_LED4</td><td>Green</td><td>Bicolor Indicator 2</td><td>High</td><td>PORTD.7</td></tr>
+ *  </table>
+ *
+ *  @{
+ */
+
+#ifndef __LEDS_USBKEY_H__
+#define __LEDS_USBKEY_H__
+
+	/* Includes: */
+		#include "../../../../Common/Common.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_LEDS_H)
+			#error Do not include this file directly. Include LUFA/Drivers/Board/LEDS.h instead.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** LED mask for the first LED on the board. */
+			#define LEDS_LED1        (1 << 4)
+
+			/** LED mask for the second LED on the board. */
+			#define LEDS_LED2        (1 << 5)
+
+			/** LED mask for the third LED on the board. */
+			#define LEDS_LED3        (1 << 7)
+
+			/** LED mask for the fourth LED on the board. */
+			#define LEDS_LED4        (1 << 6)
+
+			/** LED mask for all the LEDs on the board. */
+			#define LEDS_ALL_LEDS    (LEDS_LED1 | LEDS_LED2 | LEDS_LED3 | LEDS_LED4)
+
+			/** LED mask for none of the board LEDs. */
+			#define LEDS_NO_LEDS     0
+
+		/* Inline Functions: */
+		#if !defined(__DOXYGEN__)
+			static inline void LEDs_Init(void)
+			{
+				DDRD  |=  LEDS_ALL_LEDS;
+				PORTD &= ~LEDS_ALL_LEDS;
+			}
+
+			static inline void LEDs_Disable(void)
+			{
+				DDRD  &= ~LEDS_ALL_LEDS;
+				PORTD &= ~LEDS_ALL_LEDS;
+			}
+
+			static inline void LEDs_TurnOnLEDs(const uint8_t LEDMask)
+			{
+				PORTD |= LEDMask;
+			}
+
+			static inline void LEDs_TurnOffLEDs(const uint8_t LEDMask)
+			{
+				PORTD &= ~LEDMask;
+			}
+
+			static inline void LEDs_SetAllLEDs(const uint8_t LEDMask)
+			{
+				PORTD = ((PORTD & ~LEDS_ALL_LEDS) | LEDMask);
+			}
+
+			static inline void LEDs_ChangeLEDs(const uint8_t LEDMask,
+			                                   const uint8_t ActiveMask)
+			{
+				PORTD = ((PORTD & ~LEDMask) | ActiveMask);
+			}
+
+			static inline void LEDs_ToggleLEDs(const uint8_t LEDMask)
+			{
+				PIND  = LEDMask;
+			}
+
+			static inline uint8_t LEDs_GetLEDs(void) ATTR_WARN_UNUSED_RESULT;
+			static inline uint8_t LEDs_GetLEDs(void)
+			{
+				return (PORTD & LEDS_ALL_LEDS);
+			}
+		#endif
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+